ENTRY 12707 19820205 00001270700000001 SUBENT 12707001 19820205 00001270700100001 BIB 14 26 1270700100002 INSTITUTE (1USATNL,1CANSAS) 1270700100003 REFERENCE (J,PR/C,24,317,8107) 1270700100004 (W,TILLEY,8111) 1270700100005 AUTHOR (L.WARD,D.R.TILLEY,D.M.SKOPIK,N.R.ROBERTSON,H.R.WELLER)1270700100006 TITLE CONFIRMATION OF THE PHOTONEUTRON CROSS SECTION FOR HE-41270700100007 BELOW 33-MEV 1270700100008 FACILITY (VDGT) 1270700100009 N-SOURCE (D-D) 1270700100010 SAMPLE STAINLESS STEEL CELL CONTAINING 40-CM**3 OF 1270700100011 140-ATMOSPHERE HE-3. 1270700100012 DETECTOR (NAICR,SCIN) NAI CRYSTAL SURROUNDED BY NE110 PLASTIC 1270700100013 SCINTILLATOR ANTICOINCIDENCE SHIELD. ENTIRE DETECTOR 1270700100014 SHIELDED WITH LEAD,CADMIUM, AND PARAFFIN DOPED WITH 1270700100015 LITHIUM CARBONATE. 1270700100016 MONITOR (20-CA-40(N,G)20-CA-41,,SIG) DATA NORMALIZED TO THIS 1270700100017 REACTION. 1270700100018 METHOD (TOF). TUNGSTEN SHADOW BAR USED. 1270700100019 CORRECTION CORRECTIONS MADE FOR FINITE GEOMETRY EFFECTS, NEUTRON 1270700100020 AND GAMMA ATTENUATION, AND MULTIPLE SCATTERING. 1270700100021 ERR-ANALYS OVERALL UNCERTAINTY OF 15-PERCENT DUE TO- 1270700100022 - TARGET THICKNESS UNCERTAINTY 1270700100023 - DETECTOR EFFICIENCY 1270700100024 - CORRECTION FACTORS 1270700100025 - COUNTING STATISTICS 1270700100026 STATUS (APRVD) APPROVED BY D.R.TILLEY, 82/3/18. 1270700100027 HISTORY (811207C) 1270700100028 ENDBIB 26 0 1270700100029 COMMON 1 3 1270700100030 ANG-CM 1270700100031 ADEG 1270700100032 90. 1270700100033 ENDCOMMON 3 0 1270700100034 ENDSUBENT 33 0 1270700199999 SUBENT 12707002 19820205 00001270700200001 BIB 1 1 1270700200002 REACTION (2-HE-3(N,G)2-HE-4,,DA) 1270700200003 ENDBIB 1 0 1270700200004 NOCOMMON 0 0 1270700200005 DATA 3 20 1270700200006 EN DATA DATA-ERR 1270700200007 MEV MU-B/SR MU-B/SR 1270700200008 6.0 5.9 0.3 1270700200009 6.5 5.4 0.3 1270700200010 7.0 5.2 0.3 1270700200011 7.5 6.0 0.4 1270700200012 8.0 5.0 0.3 1270700200013 8.5 5.3 0.3 1270700200014 9.0 5.0 0.3 1270700200015 9.5 4.6 0.1 1270700200016 10.0 4.9 0.1 1270700200017 10.5 4.8 0.3 1270700200018 11.0 4.5 0.3 1270700200019 11.5 3.6 0.2 1270700200020 12.0 3.6 0.2 1270700200021 12.5 3.8 0.1 1270700200022 13.0 3.9 0.1 1270700200023 13.5 4.2 0.2 1270700200024 14.0 4.1 0.2 1270700200025 14.5 3.9 0.2 1270700200026 17.0 3.7 0.4 1270700200027 18.0 3.1 0.4 1270700200028 ENDDATA 22 0 1270700200029 ENDSUBENT 28 0 1270700299999 ENDENTRY 2 0 1270799999999